# Second Phone Number Calling vs Control Tower Global

The clearest difference is in-app purchases: Control Tower Global at none against Second Phone Number Calling's 10. Control Tower Global also leads on iOS requirement (12.2 vs 15.0). Second Phone Number Calling's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Second Phone Number Calling sells 10 in-app purchases, starting at $5.99 per 7 days. Control Tower Global asks for nothing beyond the download.

Second Phone Number Calling ships an update every 3 weeks, Control Tower Global every 2 months. The most recent releases landed on October 21, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Second Phone Number Calling | Control Tower Global |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (643 ratings)](https://appshunter.io/ios/app/second-phone-number-calling/id6443417799/reviews)** | — |
| Number of ratings | **643** | — |
| Positive reviews | 94.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | — |
| Size | 68 MB | 300 MB |
| Requires iOS | 15.0 | **12.2** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Second Phone Number & Texting LLC](https://appshunter.io/developer/1645520873) | [Supplylite PTY LTD](https://appshunter.io/developer/1434016587) |

## What reviewers say

### Second Phone Number Calling

[App page](https://appshunter.io/ios/app/second-phone-number-calling/id6443417799)

This app provides a private, secondary phone number on your existing device, allowing for unlimited calls and texts without an extra SIM. Protect your primary number from spam and manage work-life balance effectively with flexible calling and messaging features.

**Highlights:** Get verified USA phone numbers, Unlimited local and international calls, Send SMS and view message history, Send FAX worldwide, Block undesirable phone numbers, Name Number feature for identification

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pick your phone number | $5.99 | per 7 days |
| 1 Phone Number | $7.99 | per 7 days |
| 1 phone number | $9.99 | per month |
| 1 phone number | $9.99 | per month |
| 1 phone number | $14.99 | per month |
| 3 phone numbers | $27.99 | per month |
| 3 phone numbers | $27.99 | per month |
| 3 phone numbers | $74.99 | per year |
| 3 phone numbers | $119.99 | per year |
| New Phone Number | $5.99 | one-time |

**What reviewers like**

- 🚀 Efficient and reliable
- 🔒 Keeps personal information private
- 👍 User-friendly and intuitive
- 🚀 Seamless call and text experience
- 💰 Affordable international calls

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- ⚠️ Unreliable customer support
- 💰 Subscription fees may be a concern for some
- 🔍 Limited feature customization options

**Reported bugs**

- Login and account management problems
- Inconsistent call quality in low signal areas
- Billing and subscription issues

**Requested features**

- Improved call blocking and spam filtering
- Integration with popular messaging apps
- Expanded number selection options
- Enhanced voicemail and call forwarding features


### Control Tower Global

[App page](https://appshunter.io/ios/app/control-tower-global/id6474703936)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Second Phone Number Calling free?

Second Phone Number Calling is free to download, with in-app purchases available.

### Is Control Tower Global free?

Control Tower Global is free to download, with no in-app purchases.

### Do Second Phone Number Calling or Control Tower Global have ads?

Neither Second Phone Number Calling nor Control Tower Global shows ads.

### Which is updated more often, Second Phone Number Calling or Control Tower Global?

Second Phone Number Calling ships an update every 3 weeks, and Control Tower Global every 2 months. Most recently, Second Phone Number Calling was updated on October 21, 2026 and Control Tower Global on October 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*